baber/WOPTO huggingface dataset:
Patent GB-287504-A (GB)
Title: Improvements in and relating to the ventilation of dynamo-electric machines
IPC: H02K9/06
Filed: 1928-03-20
Abstract: 287,504. British Thomson-Houston Co., Ltd., (Assignees of Sohlberg, E. G.). March 22, 1927, [Convention date]. Dynamos and motors, cooling and ventilating.-A commutator machine is provided with a casing extending over the magnet frame of the machine, but leaving the commutator projecting freely, which casing collects the air thrown out at high velocity at the ends of the armature and converts its velocity head into pressure head, whereby it may be led away from the machine without the use of fans. Salient. ducts may be used to bring fresh cooling air to the regions of rarefaction around the ends of the shaft and so prevent recirculation of the air ejected at the ends of the armature. Such ducts are shown at 13 in Fig. 1, which illustrates a rotary converter, the commutator and slip-rings 3, 4 of which project beyond the central volute casing 16 which surrounds the magnet frame 1 at some distance and directs into an exit duct 19. the hot air which is thrown out by the armature 8, 9 through the openings in the frames 10 at each end of the machine. Additional air is brought by passages 12 in the foundations and ducts 13 which stand on grids 14 to the rarefied air regions around the bearings 7, offset passages 12<a> being provided also to admit air to the regions which are screened by the bearing pedestals 7<a>. The casing 16 may be hinged at 20<a> so as to be foldable, as shown in dotted lines, to give access to the machine. Fig. 4 shows a form in which the casing 38 surrounding the magnet frame is formed as a closed loop, branched to circumvent the foundation member 42 and having an outlet 44 for the exit of air thrown out by the armature at each side of the magnet frame. In this form also, as in Figs. 1 and 2, the commutator and collecting-rings project on either side of the casing 38 so as to be freely accessible for inspection &c., but no additional ducts, such as 13, Fig. 1, are employed for bringing air to the rarefied regions at each end of the armature. These ends are exposed to the engine-room air which enters axially under the suction of the machine.
Patent GB-592674-A (GB)
Title: Improvements in or relating to the proofing of solid absorbent materials against insects
IPC: C07C23/12
Filed: 1944-05-05
Abstract: 592,674. Insect-proofing. TANNER, C. C., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 5, 1944, No. 8512. [Class 140] Solid absorbent material is proofed against insects by impregnation with a solution of benzene hexachloride in a volatile solvent and evaporation of the solvent. The benzene hexachloride may contain a substantial proportion of the gamma-isomer, and the impregnation may be carried out with a solution of crude benzene hexachloride or with a fraction containing an enhanced proportion of the gamma-isomer, either of which may have been subjected to deodorising treatment. Material impregnated may be paper, wool, cotton, linen, jute, hemp, canvas, rope, matting, fibreboard or timber. Solvents specified are chlorinated aliphatic hydrocarbons such as methylene chloride, chloroform and trichlorethylene; aromatic hydrocarbons such as benzene, toluene and commercial xylene ; methanol ; ethanol ; and acetone. Solvent-removal may be accelerated by a current of warm air or steam or by reduced pressure. The impregnation may be effected by brushing, spraying or dipping. Specifications 573,689, 573,693, 586,434,586,439, 586,442, 586,464 and 586,468, [all in Group IV], are referred to.
Patent GB-1520880-A (GB)
Title: Photographic two equivalent pivalylacetanilide couplers and their use
IPC: C09B55/00
Filed: 1975-06-26
Abstract: 1520880 Photographic two-equivalent alphapivalylacetanilide couplers MINNESOTA MINING & Mfg CO 26 June 1975 [26 June 1974]  8580/78 Divided out of 1520661 Heading G2C [Also in Division C2] A two-equivalent a-pivalylacetanilide coupler having attached to the active methylene group a 1, 2, 3-benzotriazine-4-(3H)-one, 1, 3-quinazoline- 4-(3H)-one, or pyrimidine-4-(3H)-one nucleus through their 3-positions is present in a photographic silver halide material.
Patent GB-557885-A (GB)
Title: Improvements in steam and grease traps
IPC: B01D17/02
Filed: 1942-06-23
Abstract: 557,885. Waste traps : treating sewage. TAYLOR, G. and GRANT, C. DE. V. June 23, 1942, No. 8595. [Classes 33 and 111] [Also in Group XIII] Relates to steam and grease traps of the kind in which the body 1 is fitted with a removable cover 2 and is divided by a downwardly extending partition 3 into a liquid receiving and separating chamber 6 and a water delivery chamber 7, means such as a further partition 4 being provided for determining the normal liquid level in the chamber 6, while the discharge of water through the outlet 12 is controlled by a float-operated valve or similar means. According to the invention the chamber 6 is fitted at a small distance below the normal liquid level 5 with a removable plate 18 which has a number of relatively small perforations 19 distributed over the greater part of its surface to permit the upward passage of grease, while near its edges it is gapped or slotted or provided with larger openings 20 through which the liquid admitted into the trap flows to the under side of the plate 18, which at the same time serves to prevent undue disturbance of the liquid in the chamber 6 by the entering liquid. Along the edge remote from the inlet 11 the plate 18 is troughed at 21 to form a channel for collecting solid matter, and is also extended upwardly to provide a handle 22 for facilitating removal of the plate. The detachable cover 2 is preferably held in place by means of pivoted eye-bolts 24 which are fitted with nuts 25 and engage slots along the edges of the cover. Specification 511,884, [Group XIII], is referred to.
Patent GB-396856-A (GB)
Title: Improvements in built-up metal pulleys
IPC: F16H55/40
Filed: 1932-12-12
Abstract: 396,856. Pulleys. FRASER, H., FRASER, N., and FRASER, J., Westburn Foundry, Arbroath, Angus. Dec. 12, 1932, No. 8607. [Class 80 (i).] A built-up metal pulley comprises a nave or boss 3 presenting sockets, individual spokes 2 having their inner ends forcibly engaged in the sockets, and metallic connecting members 5 welded to the spokes at or near their outer ends and attached to the internal peripheral surface of the rim 1, as by rivets 7. The sockets in the boss may be thermally shrunk on to the spokes or the spokes may be forced into the sockets. Modified forms of connecting member comprise a flat palm 8, Fig. 4, a pair of anglelugs (not shown), a split palm 11, Fig. 8, having a central dished portion 13, and an annularpalm having a pressed central socket or flange (not shown).
Patent GB-1035005-A (GB)
Title: Local anesthetic preparations and process of making same
IPC: A61K31/16
Filed: 1963-03-05
Abstract: Aqueous anaesthetic solutions, prepared by adding carbon dioxide to an aqueous suspension of a local anaesthetic of the basically substituted acid amide type, e.g. lidocaine, until the anaesthetic base is dissolved, are applied from pressure resistant dispensers in which the propellant may be a mixture of chlorofluorohydrocarbons.ALSO:Aqueous solutions of local anaesthetics of the basically substituted acid amide type are prepared by introducing carbon dioxide, in an amount in excess over that stoichiometrically required for carbonate salt formation, into an aqueous suspension of the anaesthetic, at a temperature not exceeding ambient temperature, until the anaesthetic base has been dissolved. In a modification, an acid addition salt of the anaesthetic base is used together with a water-soluble, acid-neutralizing agent, e.g. sodium bicarbonate, sodium carbonate or sodium hydroxide, in an amount equimolecular to the acid moiety of the addition salt, and carbon dioxide is then introduced to dissolve the liberated base. Anaesthetics specified are lidocaine, mepivacaine, a -(n-propylamino)-propionyl-toluide-(2), (n-butyl-amino)-acetyl-2-methyl-6-chloroanilide and diethylamino-acetyl-2, 6-dimethyl-4-butoxyanilide.  The solutions may be used in vials, ampoules or pressure resistant dispensers and may be incorporated into jellies, ointments and creams.  When used in pressurised form, the propellant may be excess carbon dioxide, nitrogen or a chloro-fluorohydrocarbon.
Patent GB-568097-A (GB)
Title: Improvements in and connected with the plugs of electric couplings
IPC: H01R13/68
Filed: 1943-06-01
Abstract: 568,097. Two-part couplings. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HARRISON, B. G., and DUFFIELD, J. F. June 1, 1943, No. 8745. [Class 38 (i)] A plug coupling having detachable pins held in the base of the plug by a cover fitted thereto, has a fuse housed in the cover disposed transversely of the pins. Clips d riveted in the cover a secure the fuse c and have depending blades f that enter at one end between the hexagonal head i of one of the currentcarrying pins and the wall of the base b and at the other end between the terminal g and the wall. The heads i, i<1>, i<2> fit against ribs l, l<2>, l<3> in the base and are retained. by partitions o, o<1> in the cover. These partitions form cavities for the fuse c and a spare fuse c<2>. The cord grip p is inside the base so as to be enclosed by the cover. Projections q, r on the base and cover facilitate handling.
Patent GB-1083723-A (GB)
Title: Dispensing apparatus
IPC: G01F11/04
Filed: 1965-03-02
Abstract: 1,083,723. Delivering measured quantities of liquid. K. GODWIN. Jan. 14, 1066 [March 2, 1965], No. 8828/65. Heading B8N. A dispensing apparatus for dispensing a measured quantity of liquid, such as beer, comprises a pair of cylinders 10, 11 with common liquid connections 13, 14, a floating piston 23, 24 mounted in each cylinder, the liquid connections having an opening into each cylinder on each side of the piston thereof such that a control valve means (63, 50, Fig. 1) can selectively couple one opening of each cylinder to a source of liquid under pressure and the other opening of each cylinder to an outlet. The cylinders 10, 11 are connected to a body member 12 by tubes 21, 22 which form guides for the pistons 23, 24. The cylinders are closed at the outer ends by plates 29, 30 having openings 40 communicating with ports 39 in one end of the tubes, the other ends of the tubes being connected to a passage 14 in the body; the plates may be axially adjusted in order to vary the size of the measuring chamber. A passage 13 passes through the body and communicates with both cylinders. The control valve means includes a disc (63, Fig. 1) rotatable in a housing 45, the disc having passages arranged, in one position thereof, to connect the cylinder spaces on the outer sides of the pistons to a common outlet pipe (61) and, in an alternative position, to connect the inner cylinder spaces to the outlet pipe. The disc is prevented from being rotated until the liquid is dispensed by means of a plunger 69 in the flow pipe 68 engaging with a detent 67.
Patent GB-879060-A (GB)
Title: Spectroscope
IPC: G01J3/18
Filed: 1960-03-14
Abstract: 879,060. Spectroscope. FISHER SCIENTIFIC CO. March 14, 1960 [March 16, 1959], No. 8872/60. Class 97(1) A spectroscope comprises a grating or prism 16 which is rotatably mounted on pivots 19 to which is also attached a rod 23 carrying a scale 25. An objective 21 focuses the beam of parallel light coming from the grating (or prism) 16 in a focal curve in substantially the same place as the scale 25 and the coloured diffraction lines are viewed by an eyepiece 37. The parts of the apparatus are designed so that, where L is the distance between the pivot 19 and the scale 25 (and therefore also said focal curve). F is the focal length of objective 21. #α is the change in the angle of incidence of the light to the grating (or prism) caused by rotating the latter. ## is the corresponding change in the angle of diffraction. #α, ## are measured in radians. If the rod 23 is connected by gearing to the pivot 19, the above formula is modified to:- where N is the mechanical advantage in said gearing means for operatively connecting said scale and said prism (or grating). Preferably, the grating has between 613-1226 lines per millimeter.
Patent GB-991287-A (GB)
Title: Xerographic enlarging apparatus
IPC: G03G15/22
Filed: 1961-05-25
Abstract: 991,287. Xerographic enlarger. RANKXEROX Ltd. May 25, 1961 [June 22, 1960], No. 18955/61. Headings G2A and G2H. An enlarger comprises in combination a projection system, said system including a lamp, a condenser lens, a film support for microfilm, said support comprising parallel spaced closure means operable to slideably receive a film holder therebetween and secure the film thereat and means to operate the closure means, and an adjustable objective lens; a boxlike enclosure containing a sensitive plate, an extensible bellows secured between the projection system and the enclosure and a reflective surface in the enclosure so that the projected image is reflected on to the plate at right angles. As shown the projection system 3 is connected to enclosure 1 by extensible bellows 2, the enclosure containing a xerographic plate 14 slid in to holder 10. The projection system consists of a lamp 49, a condenser lens system 19 and an adjustable focusing lens 57 focused by knob 61. The microfilm or plate is clamped in position by rotating knob 52 so that wedge flats 38 press pin 39 thus clamping glass plates 36 and 35. The condenser barrel 32 may be rotated through 90‹ by handle 33. The magnification ratio may be altered by moving the projection system along track 4, the magnification being indicated by pointer 24. The exposure is controlled by an automatic timer control 50 which includes a switch 74 so connected to provide full time voltage for focusing the lamp and connected through a resister in the timed circuit for exposure. The plate 14 is placed in holder 10 after focusing projected image on ground glass plate 12. Specifications 672,767, 944,940 and 950,313 are referred to.
Patent GB-924922-A (GB)
Title: Improvements relating to luminescent screens
IPC: H01J9/22
Filed: 1959-03-16
Abstract: 924,922. Coating by vapour deposition. GENERAL ELECTRIC CO. March 16, 1959 [March 26, 1958], No. 8993/59. Class 82 (2). [Also in Groups XXIII and XL (a)] A luminescent screen is made by heating in an evacuated chamber a glass plate to a temperature of over 500  C. but below the temperature at which the glass softens and vacuum evaporating on to the surface of the heated glass plate a layer of a fluoride of the metal which comprises the cation of the phosphor. The evaporated fluoride chemically attacks the oxide of the glass forming a surface solution of a phosphor comprising the cation of the fluoride and an inorganic oxygen containing ion such as borate, silicate or phosphate depending on the nature of the glass, various percentage compositions of which are specified, including " Pyrex " (Registered Trade Mark) and " Vycor " (Registered Trade Mark). The cation may be zinc, cadmium, calcium, magnesium, strontium, beryllium, calcium-magnesium or zinc-beryllium and 0.01 to 5% by weight of an activator such as manganese, cerium, titanium or lead may be included in the evaporation either with or separate from the fluoride. After the evaporation process the excess fluoride may be dissolved from the screen or a layer thereof may be left over the phosphor layer to form a multi-layer luminescent screen. Apparatus for carrying out the evaporation process comprises an evacuable bell-jar 1 having an annular slotted ring 4 for supporting the glass plate 5, and an evaporation boat 12, formed by a tapered inverted coil, for holding the material 13 to be evaporated, a baffle 14 preventing vaporized material escaping to the exhaust 19 through which the jar 1 can be evacuated to a pressure of less than 10 microns. The jar 1 has a resistive coating 15 comprising a one micron thick layer of tin oxide through which current is passed by way of the ring electrodes 16, potentiometer 18 and A.C. source 17 to heat the glass plate 5. The material 13 is evaporated by current passed through the coil 12 from the potentiometer 11 and A.C. source 10. A thermocouple 6 can measure the temperature of the glass plate 5. Specification 738,518 is referred to.
Patent GB-232215-A (GB)
Title: Improvements in the construction of the cylinders of internal combustion engines
IPC: F02B77/02
Filed: 1925-04-04
Abstract: 232,215. Barriere, P. April 9, 1924, [Convention date]. Valve gear; regulating.-A long valve guide k is water-cooled by the head jacket and has a. cylindrical tappet m sliding in it, a threaded head q having a lock-nut s being provided.
Patent GB-164555-A (GB)
Title: Improvements in tyres and in wheel rims to be used therewith
IPC: B60C7/10
Filed: 1920-03-27
Abstract: 164,555. Reddaway, F., and Rackham, G. J. Merch 27, 1920. Non-metallic elastic bodies and cores; rims and fellces.-A solid tyre comprises a tread portion a, of hard rubber preferably rectangular in crosssection, a soft rubber portion d of elliptical crosssection and an inner portion f, of hard rubber. The parts are joined so that no definite line of cleavage is formed, and canvas or cord reinforcements c, h, may be provided. The hard rubber is arranged to cover the sides of the soft rubber part d. Grooves g are provided by which the tyre is held to the rim when bolts draw in a loose rim-flange k. The rim-flange k and its corresponding flange o are flared outwardly to control the distortion of the tyre under load.
Patent GB-247777-A (GB)
Title: Improvements in electrical contact devices
IPC: H01R4/24
Filed: 1925-04-04
Abstract: 247,777. Bowen, G. G. April 4, 1925. Needle-point couplings.-A pad of insulating material 14 containing a single pair of conducting strips 10, 12 is laid beneath a table cover, to supply current to a lamp having points that penetrate the insulation. The points 38, Fig. 9, are arranged in two triangular groups, each group being attached to a metal block 24 at one side of the lamp base 36<1>. The base may be of wood or other non-conducting material, the metal blocks being covered below by a disc of insulating material. If a metal base is employed The blocks 24 are enclosed in and separated by insulating sheets 42, 44, 46, by which they are secured by bolts 48 to a cross-bar 52.
Patent GB-119017-A (GB)
Title: Improvements in and relating to Interlocking Plug Switches for Electric Circuits.
Inventor: STOKES HAROLD
IPC: H01R13/707
Filed: 1918-06-01
Abstract: 119,017. Stokes, H. June 1, 1918. Plug couplings combined with electric switches. A tumbler switch in which the ordinary actuating knob is replaced by a lever is secured within a casing 1 and is actuated by a turn member 7 on the casing, the turn members actuating, at the same time, a locking pin 12 which, in the closed position of the switch, is projected into the path of movement of the plug, thereby preventing its insertion or removal. The spindle 8, Fig. 3, of the turn member carries a double-armed crankmember 10, 11 between which the actuating lever of the switch is located. The arm 11 carries a pin 14 moving in a slot in an extension 13 of the locking-pin. The movement of the turn member is limited by the engagement of the extension piece 13 with the inside of the casing or with the spindle 8. The plug is held in place by a screwed collar 16 beyond which the locking-pin extends in the closed position of the switch, which cannot be closed until the collar has been fully screwed down.
Patent GB-1216475-A (GB)
Title: Improvements in gas-cushion vehicles
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V3/04
Filed: 1967-02-27
Abstract: 1,216,475. Air cushion vehicles; railway systems; elevated railways. HOVERCRAFT DEVELOPMENT Ltd. 24 Jan., 1968 [27 Feb., 1967], No. 9228/67. Headings B7K and B7L. An air cushion vehicle 1 for operation over a concrete track 2 and supported on the top surface 3 of such track by cushions 4 positioned to either side of a linear motor rail 15, is formed at the forward end of the vehicle body 5 with a plurality of deflectors 7 secured by attachment 8 so that when the vehicle is running, air which would otherwise build up at the front of the cushions and destroy their lift is deflected away. When there is no linear motor rail and a single cushion may be used the deflectors are formed from single V profile members.
Patent GB-564783-A (GB)
Title: Improvements in gyroscopic apparatus
IPC: G01C19/12
Filed: 1943-06-09
Abstract: 564,783. Gyroscopic apparatus. HALLSTROM, H. H., and EHLIN, K. A. June 9, 1943, No. 9255. Convention date, June 4, 1942. [Class 97 (iii)] An air-driven gyroscopic apparatus having three degrees of freedom and comprising an inner Cardan ring in the form of a closed casing 4, 5 containing the rotor 1 is characterised in that the outer Cardan ring 20 is also formed as a closed casing and the motive air for the rotor is led through channels in one or both of the journal trunnions of each Cardan ring. As shown, the trunnions 24 of the outer Cardan ring 20 are pivoted in arms 26 projeoting from the front plate of a housing 28. Air is drawn in through channels 29, 31, 32, 33, trunnions 11, channels 10 in the inner casing, and out through nozzle-shaped orifices 12 to drive the rotor. The driving air from the upper side of the rotor is led away through channels 16, 15 and out through the upper trunnion 24. From the lower side of the rotor, the driving air is discharged through two parallel channels 13 leading to outlets 14 and thence through the upper trunnion 24. The outlet channels 14, 15 are situated symmetrically in relation to the outlet trunnion 24, and any tendency of the outer Cardan ring to leave its proper position is avoided.
Patent GB-243597-A (GB)
Title: Improved holder for salt blocks for animals
IPC: A01K5/015
Filed: 1925-04-08
Abstract: 243,597. Bell, G. E. April 8, 1925. Salt, supplying to animals. -A salt-holder B formed' of metal, wood, clay or other material, has its sides shaped to engage a block of salt A which is tapered outwardly and downwardly. The corners of the turned up sides of the holder are rounded off. Specifications 22380/02, 122,739, and 179,680 are referred to.
Patent GB-522185-A (GB)
Title: Improvements in and connected with hooks or shackles
IPC: B66C1/34
Filed: 1939-03-27
Abstract: 522,185. Hooks or shackles for taking loads. MORRIS, Ltd., H., and SMITH, G. T. March 27, 1939, No. 9466. [Classes 24 and 89 (ii)] A hook or shackle is provided with a ball race, an inner member 2 of which is integral with the hook 1 and the outer member 3 forming part of the element 4 to which the lifting tackle is connected. The shank of the hook or the swivel pin of the shackle is enlarged to form the inner member of the ball race and this is heat-treated to form a hardened bearing surface. An aperture 6 closed by a plug 7 allows of insertion of the balls and a greaser 9 serves for lubrication purposes. The ball race takes the radial pressure as well as the thrust of the load.
Patent GB-288177-A (GB)
Title: Improvements in or relating to the transmission of pictures using intermediate record media of steel carrying means magnetised on the poulsen telegraphone principle
IPC: H04N5/782
Filed: 1928-03-29
Abstract: 288,177. Karolus, A. April 2. 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Copying-telegraphs. - In a copying-telegraph signals corresponding to the picture to be transmitted and produced in the usual manner are sent from a sub-station to a main transmitting station where they are recorded on a telegraphone and subsequently transmitted over the main transmitting line, and a similar arrangement of main station and sub-stations is used at. the receiving end. Signalling is carried out at a greater velocity over the main line than over the distribution lines.